Supporters of diets and fitness are trying to achieve a beautiful figure and ideal weight, but this concept is very vague and incomprehensible. What is the ideal weight? People of the same height and weight can look completely different, beauty simply cannot be put on numbers.
However, some indicative formulas still exist. One of the most popular methods is the calculation of body mass index, briefly called BMI. The calculation method is very simple: its mass in kilograms must be divided by the value of growth, expressed in meters and squared. The result should be interpreted as follows: less than 20 is the mass deficit, 20-23 is the norm, 24-29 is the excess weight. A number above 29 indicates obesity. But this primitive calculation of body weight, despite its popularity, is considered inaccurate, the type of bone structure is not taken into account in the calculation.
The following calculation of body weight is considered more accurate. First you need to measure the volume of the wrist, a result of 14 to 18 centimeters is an indicator of a normosthenic physique, and less or more, respectively, of asthenic and hypersthenic. The following should be the weight in grams divided by your height in centimeters and the result obtained should be evaluated in accordance with the table.
| Age | Asthenics | Normostenics | Hypersthenics |
| 15-18 | 310-320 | 320-340 | 340-360 |
| 19-25 | 320-340 | 340-350 | 350-370 |
| 26-39 | 330-345 | 345-365 | 365-380 |
The indicators are also very arbitrary, so even this more complex technique will not help to calculate the exact body mass index. The calculation used in the following method can also help in the difficult task of determining your ideal weight.
This calculation is called the Lorentz formula, according to it, the ideal weight is calculated as follows: from the growth expressed in centimeters, 100 is subtracted, and the value obtained from the difference in growth in centimeters and 150, divided in half. With an increase of 169 centimeters, the expression will be like this: (169-100) - (169-150) / 2.
Also recently, one of the British mathematicians, who believed that the traditional calculation of body mass gives a somewhat incorrect result, proposed a new formula. By this method, its mass in kilograms must be multiplied by 1.3 and divided by the height in meters multiplied by 2.5. The result can be interpreted according to the same indicators as the traditional BMI.
However, any of these methods misses information about the amount of fat in the body, that is, a bodybuilder can show a result higher than normal, although the percentage of fat in his body is very small. Therefore, any universal calculation of body weight is suitable only as an inaccurate guideline.
Determining body composition and fat percentage is also quite easy, but for this you need a special tool, and even better - a professional nutritionist or fitness instructor. Using this tool, folds are measured on different parts, which can be formed, and the average result is displayed.
Another study that helps to find out body composition is impedancemetry. Using a special device, a weak current is passed through some parts of the body and resistance is measured. The procedure is completely painless, but helps to accurately determine the amount of fat and water in the body. Such a study can be done in a fitness center or clinic.
In fact, there are no universal formulas that can be used to calculate body mass suitable for different people. When determining your ideal weight, you need to focus on your own health, reflection in the mirror and the advice of professionals.